Cooler air moves under warm air because the cooler air—

• Moves faster

• Is denser

• Contains a higher percentage of oxygen

• Has more potential energy

This best title for this graphic would be—

• Humans’ Dependence on Energy

• Cause and Effects of Increased Greenhouse Gases

• The Role of Excess Carbon Dioxide in the Distribution of Energy

• How Convection Currents Distribute Thermal Energy

Moisture in the air is called—

• Humidity

• Pressure

• Altitude

• Latitude

A student takes measurements of the current weather and discovers the following: - The current temperature is 82°F. - The current humidity is 65%. - The current pressure is 30.15 in but it is rapidly decreasing. Which of the following is the best prediction based upon this data?

• It is already raining.

• It will snow soon.

• A storm is likely approaching.

• The weather will remain fair and sunny.

Which of these instruments did the student use to determine the air pressure?

• Thermometer

• Anemometer

• Barometer

• Rain Gauge

Use the weather report to answer the question. Which day is most likely to have a low pressure system?

• Thursday

• Friday

• Saturday

• Sunday

Use the graph to answer the question. Based on this graph, what type of front most likely moved into the area around 5pm?

• Low Pressure

• High Pressure

• Cold Front

• Warm Front

Which number on the weather report shows data that would be collected with an anemometer?

• 1

• 2

• 3

• 4

Which number on the weather report shows the amount of precipitation expected each day?

• 1

• 2

• 3

• 4

Which of the following are true about hurricanes? Choose 3 correct answers.

• They occur over warm, tropical water.

• They have winds equal to or greater than 74 miles per hour.

• They can have a wide negative impact on the ecosystem of an area.

• They last about 30-60 minutes.